Orange swift

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Orange swift
Triodia sylvina, male.jpg
Triodia sylvina, male
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Hepialidae
Genus: Triodia
Species:
T. sylvina
Binomial name
Triodia sylvina
(Linnaeus, 1761)
Synonyms
List
    • Phalaena (Noctua) sylvinaLinnaeus, 1761
    • Alphus sylvinus(Linnaeus, 1761)
    • Hepialus sylvina(Linnaeus, 1761)
    • Hepialus sylvinus(Linnaeus, 1761)
    • Bombyx hamma[Denis and Schiffermüller], 1775
    • Hepialus angulatusFabricius, 1781
    • Phalaena multicolorFourcroy, 1785
    • Hegialus cruxFabricius, 1787
    • Noctua angulumde Villers, 1789
    • Noctua c-albumde Villers, 1789
    • Hepialus faunaSchrank, 1801
    • Hepialus cruxatorHaworth, 1802
    • Hepialus angulatorHaworth, 1802
    • Hepialus sylvinatorHaworth, 1802
    • Hepialus pallidusHormuzaki, 1894
    • Hepialus poecilusHormuzaki, 1894
    • Hepialus kruegeriTurati, 1909
    • Hepialus victoriaePetkoff, 1914
    • Hepialus brunnescensLempke, 1938
    • Hepialus pauperLempke, 1938
    • Hepialus androgynusAgenjo, 1942
    • Hepialus pardoiAgenjo, 1942
    • Hepialus alfaroiAgenjo, 1942
    • Hepialus laincalvoAgenjo, 1942
    • Triodia nigrescensLempke, 1961
    • Triodia obscuraLempke, 1961
    • Triodia pallidaLempke, 1961
    • Triodia reductaLempke, 1961

The orange swift or orange moth (Triodia sylvina) is a moth belonging to the family Hepialidae. The species was first described by Carl Linnaeus in 1761 and was previously placed in the genus Hepialus . It is distributed throughout Europe.

Contents

Description

This species has a wingspan of 32–48 mm. The male has rich orange forewings with two white bars forming a "V" shape. The hindwings are dark brown. The female is similar but generally larger and less brightly coloured. It flies at night from June to September and is attracted to light. They do not have a proboscis so will not be found at flowers feeding. The globular, shiny black eggs are broadcast by the female as she hovers over the food plant. [1] [2]

Larva

When they hatch the larvae find their foodplant, bore into the root and are 25 to 30 mm long when fully fed. They have an orange-brown head and a shiny white body with brownish-orange dorsal plates on the thoracic segments; spiracles are black. They can feed for two years from September to July on the roots of various plants including bracken (Pteridium species), dandelion ( Taraxacum species), docks ( Rumex species), hop ( Humulus lupulus ) and viper's bugloss ( Echium vulgare ). [1] [3]

Pupa

The larvae pupate in silken cocoons near the surface of the soil; pupa are elongated with hooked bristles on the abdominal segments. They leave the cocoon, prior to the emergence of the imago. [1]

Distribution

Found throughout northern, central and south-eastern Europe to the Middle East. [1]

Etymology

Originally placed in the genus Hepialus – from the Greek; hēpialos – means a fever, as in 'the fitful, alternating flight' of the moth. It has since been allocated to the genus Triodia [ clarification needed ]. The specific name sylvina – from silvanus – belonging to a wood, referring to the moths habitat; although it can be found in other habitats. [4]

Notes

  1. ^ The flight season refers to the British Isles. This may vary in other parts of the range.

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References

  1. 1 2 3 4 Heath, John (1983). Hepialidae. In The Moths and Butterflies of Great Britain and Ireland. Volume 1. Colchester: Harley Books. pp. 166–70. ISBN   0 946589 15 1.
  2. Leverton, Roy (2001). Enjoying Moths. London: Poyser Natural History. p. 97. ISBN   0 85661 124 7.
  3. Porter, Jim (1997). The Colour Identification Guide to Caterpillars of the British Isles. London: Viking. p. 1. ISBN   0 670 87509 0.
  4. Emmet, A Maitland (1991). The Scientific Names of the British Lepidoptera. Their history and meaning. Colchester: Harley Books. p. 42. ISBN   0-946589-35-6.